Home / 20,699.68-28,598.96-14,440

Finding the Fourth Proportional to 20,699.68, 28,598.96 and 14,440

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Solution

The fourth proportional to 20,699.68, 28,598.96 and 14,440 is: 19,950.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,699.68 : 28,598.96 = 14,440 : x
  2. Step 2: Convert to fraction form
    20,699.68/28,598.96 = 14,440/x
  3. Step 3: Cross multiply
    20,699.68x = 28,598.96 × 14,440
  4. Step 4: Simplify right side
    20,699.68x = 412,968,982.40
  5. Step 5: Solve for x
    x = 412,968,982.40/20,699.68
  6. Step 6: Final answer
    x = 19,950.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.